Madame Xanadu organized the group called Justice League Dark when she foresaw a terrible future only they could prevent. They were assembled to stop the Enchantress when she went on a rampage after being separated from her host June Moone. Enchantress begun going insane and Xanadu gave her the names of those working against her.John Constantine and Zatanna worked together to cast incantations. Madame Xanadu had Shade, the Changing Man reluctantly recruit Mindwarp.Deadman tried to protect June, but Enchantress finally captured her when Shade messed up a spell.The whole team met for the first time in their final battle with Enchantress, which ended when Constantine bonded her to June Moone again. He sacrificed her life to protect hundreds of others. When Xanadu then tried to rally them as a team, they all angrily refused her. Eventually Constantine, Deadman, Shade and Zatanna begun having horrible nightmares and visited Xanadu again. She revealed tem that these were visions of what would come by if they would not form a team, and they became the Justice League Dark.
